Glad you enjoyed it! We're looking into updating the game and a few of the issues you mentioned are already being looked into (we're planning to add a control mapping screen for both keyboard and controllers, and we're also looking at buffing the down thrust). As for the pocket sized thing, we decided to incorporate it into the plot of the game but it's not very well explained - we were going to have an intro cutscene but we ended up not having enough time, so it's only really shown in the ending screen.
Thank you for playing our game ^-^